What is the primary purpose of the invocations, or 'Mangalacharan', described in the first chapter of the Sai Satcharitra?

The first chapter of the Sai Satcharitra explains that the 'Mangalacharan', or auspicious invocations, serve a crucial purpose. According to the text, it is a practice of the wise to begin any task with these invocations for its obstacle-free completion. The author states that the reason for this auspicious beginning is the removal of all obstacles and the fulfillment of the desired goal. By offering salutations to deities like Lord Ganesha, the author seeks divine grace to successfully complete the monumental task of writing the Satcharitra, as detailed in Chapter 1.